Home / 278,656.18-418,000.06-89,133.18

Finding the Fourth Proportional to 278,656.18, 418,000.06 and 89,133.18

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Solution

The fourth proportional to 278,656.18, 418,000.06 and 89,133.18 is: 133,704.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,656.18 : 418,000.06 = 89,133.18 : x
  2. Step 2: Convert to fraction form
    278,656.18/418,000.06 = 89,133.18/x
  3. Step 3: Cross multiply
    278,656.18x = 418,000.06 × 89,133.18
  4. Step 4: Simplify right side
    278,656.18x = 37,257,674,587.99
  5. Step 5: Solve for x
    x = 37,257,674,587.99/278,656.18
  6. Step 6: Final answer
    x = 133,704.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.